﻿// This file is part of YamlDotNet - A .NET library for YAML.
// Copyright (c) Antoine Aubry and contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

namespace YamlDotNet.Core
{
    internal sealed class SimpleKey
    {
        private readonly Cursor cursor;

        public bool IsPossible { get; private set; }

        public void MarkAsImpossible()
        {
            IsPossible = false;
        }

        public bool IsRequired { get; }
        public int TokenNumber { get; }
        public int Index => cursor.Index;
        public int Line => cursor.Line;
        public int LineOffset => cursor.LineOffset;

        public Mark Mark => cursor.Mark();

        public SimpleKey()
        {
            cursor = new Cursor();
        }

        public SimpleKey(bool isRequired, int tokenNumber, Cursor cursor)
        {
            IsPossible = true;
            IsRequired = isRequired;
            TokenNumber = tokenNumber;
            this.cursor = new Cursor(cursor);
        }
    }
}
